ERS-1 Synthetic Aperture Radar Data held at the Alaska Satellite Facility
Entry ID: ASF00001

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Summary
Abstract: The data set consists of all ERS-1 SAR data acquired by the Alaska Satellite Facility (ASF) operated by the Geophysical Institute of the University of Alaska in Fairbanks. Only data within the station mask of ASF, approximated by a 3000 km radius circle centered on Fairbanks, is acquired.

Available products include:

Full-res images are 4-look SAR images with 30 m resolution and 12.5 m
pixel spacing over a 100 km x 100 km area. These are 8192 pixel x
8192 pixel x 8 bit (64MB) images. The data is corrected to the
GEM06 geoid model.
Lo-res images are produced by 8 x 8 averaging the full-res data. The
resulting image is 1024 pixels x 1024 pixels x 8 bits (1 MB).

Complex images, are 1-look data with approximately 10 m resolution covering an area of 30km x 50 km. Data is formatted as 12,888 pixel x 2048 pixel x 32 bit complex integers (16I, 16Q-about 100MB). The data contains backscatter amplitude and phase useful for interferometry studies of topography and feature motion.

Approval by NASA or ESA is required to obtain the data. Please contact ASF user services to become a NASA approved investigator.

Related URL
Link: GET DATA > ECHO
Description: Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.


Geographic Coverage
 N: 85.0 S: 40.0  E: -130.0  W: 155.0

Data Set Citation
Dataset Title: ERS-1 Synthetic Aperture Radar Data held at the Alaska Satellite Facility
Online Resource: http://www.asf.alaska.edu/


Temporal Coverage
Start Date: 1991-09-07
Stop Date: 1996-06-15


Location Keywords
OCEAN > ARCTIC OCEAN
OCEAN > PACIFIC OCEAN
CONTINENT > NORTH AMERICA
GEOGRAPHIC REGION > POLAR


Data Resolution
Latitude Resolution: 30 m
Longitude Resolution: 30 m


Science Keywords
AGRICULTURE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]
BIOSPHERE >VEGETATION    [Definition]
CRYOSPHERE >SEA ICE >ICE EDGES    [Definition]
CRYOSPHERE >SEA ICE >ICE EXTENT    [Definition]
CRYOSPHERE >SEA ICE >ICE FLOES    [Definition]
CRYOSPHERE >SEA ICE >ICE TYPES    [Definition]
CRYOSPHERE >SEA ICE >ICEBERGS    [Definition]
CRYOSPHERE >SEA ICE >LEADS    [Definition]
CRYOSPHERE >SEA ICE >PACK ICE    [Definition]
CRYOSPHERE >SEA ICE >POLYNYAS    [Definition]
CRYOSPHERE >SEA ICE    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS >GLACIERS    [Definition]
CRYOSPHERE >SNOW/ICE >ICE EXTENT    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS >ICE SHEETS    [Definition]
CRYOSPHERE >SNOW/ICE >LAKE ICE    [Definition]
CRYOSPHERE >SNOW/ICE >PERMAFROST    [Definition]
CRYOSPHERE >SNOW/ICE    [Definition]
LAND SURFACE >GEOMORPHOLOGY    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND COVER    [Definition]
LAND SURFACE >LAND USE/LAND COVER    [Definition]
LAND SURFACE >TOPOGRAPHY >LANDFORMS    [Definition]
LAND SURFACE >TOPOGRAPHY    [Definition]
OCEANS >COASTAL PROCESSES    [Definition]
OCEANS >OCEAN WAVES    [Definition]
OCEANS >OCEAN WINDS    [Definition]
OCEANS >SEA ICE >ICE EDGES    [Definition]
OCEANS >SEA ICE >ICE EXTENT    [Definition]
OCEANS >SEA ICE >ICE FLOES    [Definition]
OCEANS >SEA ICE >ICE TYPES    [Definition]
OCEANS >SEA ICE >ICEBERGS    [Definition]
OCEANS >SEA ICE >LEADS    [Definition]
OCEANS >SEA ICE >PACK ICE    [Definition]
OCEANS >SEA ICE >POLYNYAS    [Definition]
OCEANS >SEA ICE >SEA ICE AGE    [Definition]
OCEANS >SEA ICE    [Definition]
SPECTRAL/ENGINEERING >RADAR >RADAR BACKSCATTER    [Definition]
SPECTRAL/ENGINEERING >RADAR >RADAR IMAGERY    [Definition]
CRYOSPHERE >FROZEN GROUND >PERMAFROST    [Definition]
CRYOSPHERE >FROZEN GROUND    [Definition]
LAND SURFACE >FROZEN GROUND    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS >ICEBERGS    [Definition]
CRYOSPHERE >GLACIERS/ICE SHEETS >GLACIER MOTION/ICE SHEET MOTION    [Definition]


ISO Topic Category
BIOTA
ELEVATION


Platform
ERS-1 >European Remote Sensing Satellite-1    [Information]


Instrument
SAR >Synthetic Aperture Radar    [Information]


Project
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]


Access Constraints
ERS-1 SAR data access is restricted to investigators approved by NASA or ESA. To become an approved user, please submit a short proposal to NASA. Guidelines for the proposal and submission instructions can be found at http://www.asf.alaska.edu/.


Keywords
ASF DAAC
DAAC
EOSDIS
GLOBAL CHANGE
IDN_NODE GSFC/ASF
SAR DAAC
SAR DATA


Originating Center
ASF


Data Center
Alaska Satellite Facility    [Information]
Data Center URL: http://www.asf.alaska.edu/
Dataset ID: ERS-1-SAR

Data Center Personnel
Name: ASF DAAC USER SUPPORT
Phone: (907) 474-6166
Fax: (907) 474-2665
Email: uso at asf.alaska.edu
Contact Address:
Alaska Satellite Facility
Geophysical Institute
University of Alaska Fairbanks
PO Box 757320
City: Fairbanks
Province or State: AK
Postal Code: 99775-7320
Country: USA


Personnel
ASF DAAC USER SUPPORT
Role: DIF AUTHOR
Phone: (907) 474-6166
Fax: (907) 474-2665
Email: uso at asf.alaska.edu
Contact Address:
Alaska Satellite Facility
Geophysical Institute
University of Alaska Fairbanks
PO Box 757320
City: Fairbanks
Province or State: AK
Postal Code: 99775-7320
Country: USA



Creation and Review Dates
Last DIF Revision Date: 2011-10-20
Future DIF Review Date: 2002-09-01

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